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Liquefaction of Gases

Chemistry ⇒ States of Matter

Liquefaction of Gases starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Liquefaction of Gases. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 9
Describe the role of pressure in the liquefaction of gases.
Describe the steps involved in the liquefaction of air.
Explain why carbon dioxide can be liquefied at room temperature by applying pressure, but nitrogen cannot.
Explain why cooling a gas helps in its liquefaction.
Explain why gases with weak intermolecular forces are harder to liquefy.
A gas has a critical temperature of -118°C. Can it be liquefied at -100°C by applying pressure?
A sample of nitrogen gas is at 200 atm and -200°C. Is it likely to be in the liquid state?
The critical temperature of a gas is 31°C. Can this gas be liquefied at 40°C by applying pressure?
Which gas is most difficult to liquefy? (1) Oxygen, (2) Nitrogen, (3) Hydrogen, (4) Carbon dioxide
Which of the following gases has the lowest critical temperature? (1) Oxygen, (2) Nitrogen, (3) Helium, (4) Carbon dioxide
Which of the following gases is commonly stored and transported in liquefied form? (1) Oxygen, (2) Nitrogen, (3) LPG, (4) All of the above
Which of the following gases is used as a refrigerant in its liquefied form? (1) Oxygen, (2) Ammonia, (3) Nitrogen, (4) Hydrogen
The ________ effect is used in the Linde process for liquefying air.
The ________ process uses both cooling and expansion to liquefy gases.
The critical pressure of a gas is defined as the ________ pressure required to liquefy a gas at its critical temperature.
The process of cooling a gas by allowing it to expand rapidly is called ________.
A gas has a critical temperature of -118°C. Can it be liquefied at -100°C by applying pressure?
A sample of nitrogen gas is at 200 atm and -200°C. Is it likely to be in the liquid state?
The critical temperature of a gas is 31°C. Can this gas be liquefied at 40°C by applying pressure?
True or False: All gases can be liquefied by applying pressure alone, without cooling.